add 2023/15/1

2023/src/bin/day15.rs

@@ -0,0 +1,34 @@
+#![feature(test, type_alias_impl_trait)]
+extern crate test;
+use aoc2023::{boilerplate, common::*};
+
+const DAY: usize = 15;
+type I = u32;
+type Parsed<'a> = impl Iterator<Item = &'a str> + Clone;
+
+fn parse_input(raw: &str) -> Parsed {
+    raw.trim_end_matches('\n').split(',')
+}
+
+fn hash(s: &str) -> I {
+    s.bytes().fold(0, |acc, b| (acc + b as I) * 17 & 255)
+}
+
+fn part1(parsed: &Parsed) -> I {
+    parsed.clone().map(hash).inspect(|n| println!("{n}")).sum()
+}
+
+fn part2(parsed: &Parsed) -> I {
+    unimplemented!()
+}
+
+boilerplate! {
+    TEST_INPUT == "rn=1,cm-,qp=3,cm=2,qp-,pc=4,ot=9,ab=5,pc-,pc=6,ot=7"
+    for tests: {
+        part1: { TEST_INPUT => 1320 },
+        part2: { TEST_INPUT => 0 },
+    },
+    bench1 == 510273,
+    bench2 == 0,
+    bench_parse: |i: &Parsed| i.clone().count() => 4000,
+}